Ac-Dc Conversion Without Reversal TRIZ Cases

An inductorless isolated switching power converter design coordinates primary and synchronous rectifier timing to achieve near zero voltage and current switching.

Segmented power semiconductor valves absorb DC voltage, reducing submodule count and control complexity in high-voltage multi-level converters.

Segmenting branch units into independent sealed modules enables individual replacement and remote operation, reducing transport weight and maintenance downtime.

A three-phase bi-directional AC/DC converter uses DPWM and critical conduction mode to achieve soft switching across all phases.

A power conversion system stabilizes voltage levels using a boost circuit and switching element to maintain output.

A control circuit gradually changes current flowing through a semiconductor switch to suppress conduction disturbing wave voltage.

A hybrid Cascaded H-Bridge converter switches between SHCM-PWM and PSPWM modes via a selector, meeting harmonic limits while improving transient response.

Adaptive switching frequency synchronizes power factor correction FET turn-on with zero voltage and current conditions.

A power converter adjusts proportional gain to detect its operational state without external communication.

Merging primary and secondary control into one unit eliminates communication delays while lowering power consumption and costs.

A passive AC-DC converter circuit uses an inductor, rectifier, and TVS diode to non-linearly regulate output voltage.

Replacing resistors with capacitors reduces power dissipation and heat generation while maintaining reliable LED operation.

A power converter design eliminates the neutral line to reduce noise leakage and simplify the power supply unit.

A burden regulation stage maintains current transformer linearity by adjusting the equivalent electric load on the secondary winding.

A linear Faraday induction generator converts ocean wave kinetic energy into electrical power using compressed repulsive magnetic fields.

A twelve-pulse autotransformer rectifier unit detects missing phases by monitoring the frequency and amplitude of common-mode voltage impressed on its DC output.

A semiconductor device uses a high carrier concentration area to disperse current in the plane direction and reduce on resistance.

A semi-trailer electric drive fracturing power supply uses a shared transformer and common DC bus to drive multiple inversion units.

A power conversion device uses a second relay to control current flow through smoothing capacitors.

An open-loop fuzzy logic controller determines firing angles from output power and input voltage to maintain stable DC bus voltage during UPS load changes.

A powering circuit for AC-DC converters uses a sensing circuit to control a second switch based on input voltage levels.

A constant-current circuit limits current to prevent opposing discharge, securing electricity storage.

A resonant DC-DC converter generates pulsating charging currents directly from AC input voltage without large electrolytic capacitors.

Capacitive divider couples primary and secondary grounds in LED power supplies for real-time frequency detection.

A contactless power supply device allocates regenerative power between electric loads via a DC transformer circuit.

A fractional-turn transformer structure uses flux canceling to reduce core and copper losses in magnetic components.

Embedding a wireless beacon in an outlet faceplate via an AC/DC converter eliminates battery replacement needs and prevents device loss.

A voltage converter adjusts output charge based on sensed current draw to manage power delivery.

A hybrid bulk capacitor circuit selectively connects multiple capacitors based on input voltage to reduce volume.

An adiabatically-switched protection circuit charges and discharges capacitors during specific switching phases to block electromagnetic interference.

Dynamic controller switches parallel AC-DC converters to maintain three-phase current balance.

Resonant components soften voltage transitions across the rectifier, reducing stress while enabling wide load regulation via constant frequency switching.

A step-down circuit adjusts output voltage to transmit data signals.

An adaptive on-time control mechanism reduces switching frequency at light loads, resolving the trade-off between full-load efficiency and light-loss dominance.

Series RC network limits current draw to reduce transformer complexity and withstand impulse voltages.

A line coupled capacitor AC to DC converter circuit powers low voltage control logic directly from the AC line.

A hybrid distribution transformer integrates an AC-AC converter to regulate output voltage and control power factor.

A power supply circuit generates and switches voltage polarity using a transformer, switching unit, and capacitive element.

A multiway switching device integrates a wireless relay and manual switch to enable remote electrical load control.

A decoupling filter manages output impedance in high voltage DC power systems.

A three-phase bridge converter adjusts output voltage through a transition step that generates control signals to limit inrush current amplitude.

Pre-calculated pitch angles and electrical control signals bypass mechanical inertia to suppress incoming power and maintain operation continuity.

A quick-start low dropout regulator uses switches to rapidly charge the output node via an N-type depletion MOSFET.

L-shaped input wiring lines and vertical routing reduce semiconductor device size while maintaining efficient current paths.

Bridgeless PFC circuit lowers common-mode interference via segmentation and neutral point balancing, reducing conduction loss and EMI.

A multilevel switched-capacitor rectifier generates stepped output waveforms to regulate battery charging voltage and current.

Parallel 18-pulse rectifiers with hexagonal autotransformers reduce AC input current harmonics and DC bus ripple.

Primary-side detection eliminates secondary isolators, reducing device complexity while maintaining precise dimming control accuracy for LED loads.

A power conversion apparatus manages the closing phase angle of a circuit breaker to synchronize switching with input voltage cycles.

A determination circuit evaluates main terminal voltage to verify the on-off state of a synchronous rectification MOSFET before switching.